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chara:operating_procedures [2020/01/17 18:38]
charaobs
chara:operating_procedures [2020/01/23 14:23]
jones
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 [[:chara:text_commands_for_chara_guis|Text Commands for CHARA GUIs]]\\ [[:chara:text_commands_for_chara_guis|Text Commands for CHARA GUIs]]\\
 [[:chara:operating_procedures#observing_conditions|Observing Conditions]]\\ [[:chara:operating_procedures#observing_conditions|Observing Conditions]]\\
-[[:chara:operating_procedures#going_on_sky|Going on Sky]]\\ +[[:chara:operating_procedures#going_on_sky|Going on Sky]] 
-[[:chara:operating_procedures#procedure_for_shutting_down_at_the_end_of_the_night|Procedure for Shutting Down the Array]]\\+ 
 +[[:chara:night_time_pop_changes|Night-time POP Changes]] 
 + 
 +[[:chara:operating_procedures#procedure_for_shutting_down_at_the_end_of_the_night|Procedure for Shutting Down the Array]] 
 \\ \\
 __**SUPPLEMENTAL INFORMATION**__ \\ __**SUPPLEMENTAL INFORMATION**__ \\
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 [[https://docs.google.com/document/d/1UY5C8Pkbi_yd448aF_TXXE9KFkwjd5VK3LALvkFahjQ/|Coude alignment (daytime)]]\\ [[https://docs.google.com/document/d/1UY5C8Pkbi_yd448aF_TXXE9KFkwjd5VK3LALvkFahjQ/|Coude alignment (daytime)]]\\
 {{:chara:files:s2_new_finder_camera-r1.docx|New S2 Finder Instructions}} \\ {{:chara:files:s2_new_finder_camera-r1.docx|New S2 Finder Instructions}} \\
-[[:chara:night_time_pop_changes|Night-time POP Changes]]\\+\\
 [[:chara:azimuth_coude_alignments|Azimuth coudé alignments]]\\ [[:chara:azimuth_coude_alignments|Azimuth coudé alignments]]\\
 {{:chara:files:tiptilt_splitters_change.pdf|Tip-tilt Splitters Change}} \\ {{:chara:files:tiptilt_splitters_change.pdf|Tip-tilt Splitters Change}} \\
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 \\ \\
 CHARA Array Operating Procedures\\ CHARA Array Operating Procedures\\
-Copyright © 2005-2019 The CHARA Team\\ +Copyright © 2005-2020 The CHARA Team\\ 
-Last updated: 2019-12-17\\+Last updated: 2020-1-22\\
 \\ \\
 \\ \\
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 \\ \\
 \\ \\
-_\\ 
 \\ \\
 **Chapter 1: ** Lab Protocol\\ **Chapter 1: ** Lab Protocol\\
 +=== Lab Protocol ===
 \\ \\
-1.1 Lab Rules Intro\\+1.1 Lab Rules Intro 
 The CHARA optics lab is a building within a building and is intended to provide thermal and vibrational stability. The main goal of the CHARA lab rules is to keep all optics and equipment safe from any hazards. The crucial issue being misalignment of anything. The amount of dust and dander must be kept to a minimum. The CHARA optics lab is a building within a building and is intended to provide thermal and vibrational stability. The main goal of the CHARA lab rules is to keep all optics and equipment safe from any hazards. The crucial issue being misalignment of anything. The amount of dust and dander must be kept to a minimum.
  
-1.2 The Metrology Laser\\+1.2 The Metrology Laser 
 A high-powered infrared laser is used for the delay line metrology. This is an eye hazard, so before entering the lab check to make sure the red light above the door is not on. If the laser is activated, it is a must to put on IR-protective goggles. If you are not sure, wear the goggles. A high-powered infrared laser is used for the delay line metrology. This is an eye hazard, so before entering the lab check to make sure the red light above the door is not on. If the laser is activated, it is a must to put on IR-protective goggles. If you are not sure, wear the goggles.
  
-1.3 General Lab Rules\\+1.3 General Lab Rules 
 Please remember that:\\ Please remember that:\\
 Procedures in the lab must be followed closely and failure to follow these rules will result in loss of lab privileges.\\ Procedures in the lab must be followed closely and failure to follow these rules will result in loss of lab privileges.\\
-Before entering the lab, you must have a reason or tasks at hand.+Before entering the lab, you must have a reason or tasks at hand.
  
-Lab booties/shoe covers must be worn by all. Throw out booties that have holes in them. The traction tape on the steps are particularly rough on booties so examine them before and after using them. Proper clothing is also important. Loose hanging jackets or garments can snag on mirrors or other exposed equipment and are better left outside of the lab until you are finishedPlease be alert and move slowly and cautiously. When entering the lab make sure to walk across the sticky floor mat. If the mat isn’t sticky, remove the top layer. If this is close to the final layer please notify the staff. No more than three people are allowed in the lab at once unless it is 3 to 4 hours before observing time or there is some pressing need. Many bodies can create unwanted atmospheric effects. Besides, with too many people, it is too easy to bump into each other and the equipment. If you bump, hit, move or just tap anything in the slightest way, let us know. Never touch anything you have not been trained to use. If ever in any doubt, leave it alone and get someone who knows. Any unusual sounds, sights, movement of equipment, etc., should be noted. You must know the path of the laser beams, metrology or alignment. Stay out of their way especially right before observing. If you must go into the lab during this time don’t forget to put on IR-protective goggles. Access and use of the lab requires training. If a piece of equipment does not appear to be operating properly let us know immediately. Also if you are uncertain about a lab procedure or a step in the alignment sequence contact us before proceeding. When leaving the lab any time of the day, remember to turn off all lights (fluorescent and incandescent). Lights left on generate unnecessary heat in the lab.\\+Lab booties/shoe covers must be worn by all. Throw out booties that have holes in them. The traction tape on the steps are particularly rough on booties so examine them before and after using them. Proper clothing is also important. Loose hanging jackets or garments can snag on mirrors or other exposed equipment and are better left outside of the lab. Please be alert and move slowly and cautiously. When entering the lab make sure to walk across the sticky floor mat. If the mat isn’t sticky, remove the top layer. If this is close to the final layer please notify the staff. No more than three people are allowed in the lab at once unless it is 3 to 4 hours before observing time or there is some pressing need. Many bodies can create unwanted atmospheric effects. With too many people, it is too easy to bump into each other and the equipment. If you bump, hit, move or just tap anything in the slightest way, let us know. Never touch anything you have not been trained to use. If ever in any doubt, leave it alone and get someone who knows. Any unusual sounds, sights, movement of equipment, etc., should be noted. You must know the path of the laser beams, metrology or alignment. Stay out of their way especially right before observing. If you must go into the lab during this time don’t forget to put on IR-protective goggles. Access and use of the lab requires training. If a piece of equipment does not appear to be operating properly let us know immediately. Also if you are uncertain about a lab procedure or a step in the alignment sequence contact us before proceeding. When leaving the lab any time of the day, remember to turn off all lights (fluorescent and incandescent). Lights left on generate unnecessary heat in the lab.\\
 [[:chara:operating_procedures|Back to Main Menu]]\\ [[:chara:operating_procedures|Back to Main Menu]]\\
 \\ \\
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 **Chapter 2:** **Chapter 2:**
  
-27 AUG 2012 by Judit, Current version 17 DEC 2019 by Norm+27 AUG 2012 by Judit, Current version 17 JAN 2020 by Norm
  
 Preparations in the Lab Prior to Observing\\ Preparations in the Lab Prior to Observing\\
-These are routine tasks to be performed in and around the lab every evening to prepare the array for regular observations. Note that there is a new alignment protocol for configurations that do not change night to night. Use it instead of the full alignment given here.+These are routine tasks to be performed in and around the lab every evening to prepare the array for regular observations. Note that there is a new Daily Alignment Check Procedure for configurations that do not change night to night. Use it instead of the full alignment given here.
  
 2.1 Starting the vacuum pump for the light pipes 2.1 Starting the vacuum pump for the light pipes
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 3.3 Servers required for observing 3.3 Servers required for observing
  
-Servers can be opened from the pop up menu at bottom of screen 1, using the black platter icon or using the Observation Setup icon which opens them all at once. The GPS server and the METROL server should always stay on and remain on screen 1 Close and re-open all Telescope servers after UT 0h, (because of tiptilt connection issues) in screen 2. Open Primary OPLE Server and gui, Open Classic, Climb1, or Climb2 if needed, Open Tiptilt Server if needed, Open Metrology Monitor (METROL) gui, (upper right of screen 1), this gui usually remains open. Open Metrology Laser (METLAS) gui, (upper right of screen 1), this gui usually remains open.+Servers can be opened from the pop up menu at bottom of screen 1, using the black platter icon or using the Observation Setup icon which opens them all automatically. The GPS server and the METROL server should always stay on and remain on screen 1Close and re-open all Telescope servers after UT 0h, (because of tiptilt connection issues) in screen 2. Open Primary OPLE Server and gui, Open Classic, Climb1, or Climb2 if needed, Open Tiptilt Server if needed, Open Metrology Monitor (METROL) gui, (upper right of screen 1), this gui usually remains open. Open Metrology Laser (METLAS) gui, (upper right of screen 1), this gui usually remains open.
  
 3.4 Open Telescope guis, or obsgtks from icons on desktop 3.4 Open Telescope guis, or obsgtks from icons on desktop
  
-3.5 Open GUIs required for observing from the menu under GTK or the desktop icons: Open Primary OPLE gui, Open Classic, Climb1, or Climb2 gui if needed, Open LDC1 and LDC2 if VEGA or PAVO programs are observing. Open Tiptilt GUI, This will bring up Tiptilt GUI and Tiptilt viewing screens for all telescopes Move viewing screens near telescope TV screens+3.5 Open GUIs required for observing from the menu under GTK or the desktop icons: Open Primary OPLE gui, Open Classic, Climb1, or Climb2 gui if needed, Open LDC1 and LDC2 if VEGA or PAVO programs are observing. Open Tiptilt GUI, This will bring up Tiptilt GUI and Tiptilt viewing screens for all telescopesMove viewing screens near telescope TV screens as needed.
  
 3.6 Using the Cosmic Debris job sequencer 3.6 Using the Cosmic Debris job sequencer
  
-Open Cosmic Debris, CD for short, from the desktop icon. On the CONFIGURE tab, check to make sure the PoPs and telescope beam assignments agree with the white board or the setup email. If the POPs are wrong on CD, then open the "PoPs" gui, click on the [Overview] button on the PoPs gui. If nonsense comes up in the overview, then click [FLUSH] and then [REOPEN] on the PoPs gui, then click [UPDATE] on the PoPs Overview. If the PoPs Overview is now correct, then click the [GET] button on the CD Control Tab, this should update the PoPs. If the beams are not assigned correctly, move the beams accordingly to the proper telescope using the BeamSampler GUI and click [GET] on CD to update. Select the active telescopes on the tab labeled "Configure", choose a suitable reference cart, using the same one from the night before to make fringe finding easier.  After everything is set correctly, then click [SEND] on Cosmic Debris to send the active scope information to Ople.\\+Open Cosmic Debris, CD for short, from the desktop icon. On the CONFIGURE tab, check to make sure the PoPs and telescope beam assignments agree with the white board or the setup email. If the POPs are wrong on CD, then open the "PoPs" gui, click on the [Overview] button on the PoPs gui. If nonsense comes up in the overview, then click [FLUSH] and then [REOPEN] on the PoPs gui, then click [UPDATE] on the PoPs Overview. If the PoPs Overview is now correct, then click the [GET] button on the CD Control Tab, this should update the PoPs. If the beams are not assigned correctly, move the beams accordingly to the proper telescope using the BeamSampler GUI and click [GET] on CD to update. Select the active telescopes on the tab labeled "Configure", choose a suitable reference cart, using the same one from the night before to make fringe finding easier. After everything is set correctly, then click [SEND] on Cosmic Debris to send the active scope information to Ople.\\
 Set the instrument and settings on Cosmic Debris. On the "Control" tab on Cosmic Debris, select the beam combiner or combiners to be used. If using CLIMB or CLASSIC, also select the filter and beam\\ Set the instrument and settings on Cosmic Debris. On the "Control" tab on Cosmic Debris, select the beam combiner or combiners to be used. If using CLIMB or CLASSIC, also select the filter and beam\\
-Establish connection between tiptilt and the telescopes. On the Control Tab on Cosmic Debris, click on [TIPTILT COMM]. Click [START JOB QUEUE] on CD to continue the Tiptilt Communication sequence.  After several seconds, the telescope servers will indicate that the Socket (SOC) connection is established and turn on the tiptilt rate display. Cosmic Debris will usually display a lower rate, such as 42Hz, to indicate tiptilt is running. The servers will display 158Hz to show a proper functioning of the tiptilt system. If the connection is not established the first time, try again until CD shows rates for each telescope used. If a telescope server will not display a TT signal rate, you may need to shut it down and restart it. Once the telescope WFS's are used for tiptilt, these steps for the lab tiptilt will not be used.\\ +Establish connection between tiptilt and the telescopes. On the Control Tab on Cosmic Debris, click on [TIPTILT COMM]. Click [START JOB QUEUE] on CD to continue the Tiptilt Communication sequence. After several seconds, the telescope servers will indicate that the Socket (SOC) connection is established and turn on the tiptilt rate display. Cosmic Debris will usually display a lower rate, such as 42Hz, to indicate tiptilt is running. The servers will display 158Hz to show a proper functioning of the tiptilt system. If the connection is not established the first time, try again until CD shows rates for each telescope used. If a telescope server will not display a TT signal rate, you may need to shut it down and restart it. Once the telescope WFS's are used for tiptilt, these steps for the lab tiptilt will not be used.\\ 
-Finish setting up tiptilt GUIs.  Click re-open on the Tiptilt GUI. This will update the TT labels on the TT viewing screens from B1,B2,etc to the telescope names. Click on the [SERVO CONTROL] tab on the tiptilt GUI to bring up a second window and move to screen 5 with the telescope guis. The Servo Control GUI allows you to turn ON the servo for the TT loop and make biases for individual beams (DBIAS and ZBIAS)+Finish setting up tiptilt GUIs. Click re-open on the Tiptilt GUI. This will update the TT labels on the TT viewing screens from B1,B2,etc to the telescope names. Click on the [SERVO CONTROL] tab on the tiptilt GUI to bring up a second window and move to screen 5 with the telescope guis. The Servo Control GUI allows you to turn ON the servo for the TT loop and make biases for individual beams (DBIAS and ZBIAS)
  
 3.7 Turn on metrology laser and home the carts 3.7 Turn on metrology laser and home the carts
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 3.9 3.9
  
-The following windows should be opened on computer screen 1 (these are usually kept open all the time):  Telescope monitor, Beam Samplers and PoPs, Visbeams, Shutters and Laser Filter Wheel, VEGA Periscope, Iris, Metrology Laser and Metrology Monitor, Pico 2+The following windows should be opened on computer screen 1 (these are usually kept open all the time): Telescope monitor, Beam Samplers and PoPs, Visbeams, Shutters and Laser Filter Wheel, VEGA Periscope, Iris, Metrology Laser and Metrology Monitor, Pico 2
  
 3.10 3.10
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 4.1 Observing Conditions Intro 4.1 Observing Conditions Intro
  
-In opening the CHARA Array, conditions should be, for the most part, ideal. It is best if the sky is 60% to 70% clear and conditions stable before commencing. Delicate optics and electronics make up the majority of the Array and it’s better to err on the side of caution. In preparation for observing, the Mount Wilson weather server and web-based weather pages should be consulted. The telescopes can now be closed in about 5 minutes from the control room. With this in mind, don’t open up the telescopes to observe if conditions can change for the worse rapidly enough that you don’t get 10 minutes or more to close down safely. Weather stations now exist at each bunker and there is a control system software application to display the current conditions.  One can also use the white Radio Shack thermometer/hygrometer outside of the control room. With the Array becoming more fancily automated and weather monitoring technology becoming more robust (weather servers, satellite images, web cams, etc.), almost all weather monitoring can be done seemingly without ever leaving the cozy control room. Unfortunately this is not a good policy and nothing beats going outside for a gander and giving the sky a good old fashioned assessment. Obviously weather variations do exist from telescope to telescope, as much as 20% in RH at times. Most of the time this just means something is blowing through and opening is not a good idea. These circumstances need to be dealt with cautiously depending on the given weather conditions. Allowing extra time to close is advised in case of any problems. If any questions or doubts arise contact one of the CHARA staff.+In opening the CHARA Array, conditions should be, for the most part, ideal. It is best if the sky is 60% to 70% clear and conditions stable before commencing. Delicate optics and electronics make up the majority of the Array and it’s better to err on the side of caution. In preparation for observing, the Mount Wilson weather server and web-based weather pages should be consulted. The telescopes can now be closed in about 5 minutes from the control room. With this in mind, don’t open up the telescopes to observe if conditions can change for the worse rapidly enough that you don’t get 10 minutes or more to close down safely. Weather stations now exist at each bunker and there is a control system software application to display the current conditions. One can also use the white Radio Shack thermometer/hygrometer outside of the control room. With the Array becoming more fancily automated and weather monitoring technology becoming more robust (weather servers, satellite images, web cams, etc.), almost all weather monitoring can be done seemingly without ever leaving the cozy control room. Unfortunately this is not a good policy and nothing beats going outside for a gander and giving the sky a good old fashioned assessment. Obviously weather variations do exist from telescope to telescope, as much as 20% in RH at times. Most of the time this just means something is blowing through and opening is not a good idea. These circumstances need to be dealt with cautiously depending on the given weather conditions. Allowing extra time to close is advised in case of any problems. If any questions or doubts arise contact one of the CHARA staff.
  
 4.2 Humidity 4.2 Humidity
  
-Only open the telescopes if the humidity is steady or dropping, at 75% or below. If the roofs outside the control room are ever dripping, then the telescopes should not be opened or should be closed immediately. If when starting out, the RH is above 80%, do not open unless it drops to below 75% and stays there for at least 30 minutes. If you do open after that, be wary and watch the RH, and if it starts rising, be prepared to close. Closing up takes about 5 minutes, so be ready for that. The array operator is in charge of protecting the telescopes and makes the final decision on whether the conditions are safe to open. If the RH is low at the beginning of the night, and rises after you are already open, the array operator should inform the PI around 70-75%, and start closing between 80-85%. Other humidity warning signs are: 1) water dripping off the OPLE building (or wet spots on the asphalt straight down from the eaves); 2) cold, clammy feel to metal objects such as railings; and 3) dew forming on the parked cars. It is important to note that the humidity can rise from 50% to 80% in as little as 10 minutes, so please keep a close eye on the rate of change of the humidity plots. It can also rain or hail from small, passing clouds when the humidity is quite low, even 40% RH or lower. Operators have been surprised before by small puffy clouds in unsettled air with low humidity.  If in doubt, stay closed.  The HPWREN webcams are a good resource to view the bottoms of clouds.  If there is any virga, the clouds are holding moisture and try to rain out.  Stay closed if you see anything streaming below the clouds.+Only open the telescopes if the humidity is steady or dropping, at 75% or below. If the roofs outside the control room are ever dripping, then the telescopes should not be opened or should be closed immediately. If when starting out, the RH is above 80%, do not open unless it drops to below 75% and stays there for at least 30 minutes. If you do open after that, be wary and watch the RH, and if it starts rising, be prepared to close. Closing up takes about 5 minutes, so be ready for that. The array operator is in charge of protecting the telescopes and makes the final decision on whether the conditions are safe to open. If the RH is low at the beginning of the night, and rises after you are already open, the array operator should inform the PI around 70-75%, and start closing between 80-85%. Other humidity warning signs are: 1) water dripping off the OPLE building (or wet spots on the asphalt straight down from the eaves); 2) cold, clammy feel to metal objects such as railings; and 3) dew forming on the parked cars. It is important to note that the humidity can rise from 50% to 80% in as little as 10 minutes, so please keep a close eye on the rate of change of the humidity plots. It can also rain or hail from small, passing clouds when the humidity is quite low, even 40% RH or lower. Operators have been surprised before by small puffy clouds in unsettled air with low humidity. If in doubt, stay closed. The HPWREN webcams are a good resource to view the bottoms of clouds. If there is any virga, the clouds are holding moisture and try to rain out. Stay closed if you see anything streaming below the clouds.
  
 4.3 Dust 4.3 Dust
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 5.1 Opening the Telescope Domes and enclosures\\ 5.1 Opening the Telescope Domes and enclosures\\
 \\ \\
-You can begin opening the telescope domes and enclosures about an hour or two before sunset. This will help air out the domes and improve seeing at the start of the night. Hot days benefit from an earlier opening to allow the scopes to cool. Before opening the domes make sure to check the current weather conditions and the forecast to make sure conditions are safe to open and are likely to be stable as you wait for it to get dark. Also confirm that Judit has finished the alignments in the lab as opening the domes will not allow the completion of the M10 alignments. If you do not see her, call the computer room phone number listed on the clipboard on the wallMonitor the progress of opening the domes by turning the televisions [ON] using the telescope GUIs. Click [SPY1] to view the dome slit. * Use the Dome GUI for each telescope to rotate the domes to the east. This will position the dome slit away from the sun so that you can open the slit before sunset. * Go to the Dome Tab on the Dome GUI. In the text box on the right, enter 90 and press [GOTO]. This will move the dome slit to the east. When the domes are facing east (and all lab alignments are finished), click [SLIT OPEN] on the Control Tab of the telescope GUI to open the dome slit. On the enclosure GUI, click the [OBSERVE] button to open the lower cylinders to the observe position. Wait for the slit and enclosures to open and then wait for the sun to go down. === 5.2 Opening telescope optics ===\\+You can begin opening the telescope domes and enclosures about an hour or two before sunset. This will help air out the domes and improve seeing at the start of the night. Hot days benefit from an earlier opening to allow the scopes to cool. Before opening the domes make sure to check the current weather conditions and the forecast to make sure conditions are safe to open and are likely to be stable as you wait for it to get dark. Also confirm that Judit or Robert have finished the alignments in the lab as opening the domes will not allow the completion of the beacon alignments. Call the computer room at #424 if you do not see either of them. Monitor the progress of opening the domes by turning the televisions [ON] using the telescope GUIs. Click [SPY1] to view the dome slit. In the summer, when the sun is higher overhead, use the Dome GUI for each telescope to position the domes in the anti-sun position using the RA/DEC tab and the ANTI-SUN setting for AUTODOME. This will position the dome slit opposite the sun so that you can open the slit well before sunset. You may also go to the Dome Tab on the Dome GUI, enter 100 in the text box on the right, and press [GOTO]. This will move the dome slit to the east. When the domes are facing east (and all lab alignments are finished), click [SLIT OPEN] on the Control Tab of the telescope GUI to open the dome slit. On the enclosure GUI, click the [OBSERVE] button to open the lower cylinders to the observe position. Wait for the slit and enclosures to open to .300 and then wait for the sun to go down. 
 + 
 +5.2 Opening telescope optics\\
 \\ \\
-When the sun has set and before it is dark enough to slew to your first target, you can begin opening the telescope optics. Open the telescope optics one by one using the Control Tab on the Telescope GUIs: [M1 OPEN] - opens the primary mirror cover (takes ~ 3 minutes to open) [M3 OPEN] [M5 OPEN] [M7 OPEN] [FIND OPEN] Note that the W2 and E1? finder covers require two clicks of the [OPEN] button to fully open. Monitor progress by using [SPY2] camera on the telescope TV screens. Wait for all covers to open. The Telescope Monitor reports the status of all mirror covers. Close and reopen the Telescope Monitor if it reads UNKNOWN for a telescope, even after hitting REOPEN. === 5.3 Check the OPLE carts ===\\+When the sun has set and before it is dark enough to slew to your first target, you can begin opening the telescope optics. Open the telescope optics one by one using the Control Tab on the Telescope GUIs: [M1 OPEN] - opens the primary mirror cover (takes ~ 3 minutes to open)[M3 OPEN][M5 OPEN][M7 OPEN], and [FIND OPEN] if you want the finder. Note that the W2 and E1? finder covers require two clicks of the [OPEN] button to fully open. Monitor progress of the M1 and M3 covers by using [SPY2] camera on the telescope TV screens. Wait for all covers to open. The Telescope Monitor reports the status of all mirror covers. Close and reopen the Telescope Monitor if it reads UNKNOWN for a telescope, even after hitting REOPEN. 
 + 
 +5.3 Check the OPLE carts\\
 \\ \\
-The OPLE carts were homed in the setup procedure. However, it is always a good idea to check to make sure the carts are tracking correctly before slewing to the first target. With all [MAN] and [OL] buttons green on the OPLE Control Tab, click [TRACK] to send the carts tracking to 0.0 (home). Make sure that the "X" lights up and stays lit under the HM column on the Primary OPLE Server and that the errors are small. If neither of these happen, then try homing the carts again. After the carts successfully track on the home switch, turn the carts [OFF]. Click the open loop [OL] button on all active carts. Click the [MAN] button on the moving carts (the MAN button for the reference cart will remain green). This will allow the beam combiners to send manual offsets to the moving carts. === 5.4 Turn on the telescope power ===\\+The OPLE carts were homed in the setup procedure. However, it is always a good idea to check to make sure the carts are tracking correctly before slewing to the first target. With all [MAN] and [OL] buttons green on the OPLE Control Tab, click [TRACK] to send the carts tracking to 0.0 (home). Make sure that the "X" lights up and stays lit under the HM column on the Primary OPLE Server and that the errors are small. If neither of these happen, then try homing the carts again. After the carts successfully track on the home switch, turn the carts [OFF]. Click the open loop [OL] button on all active carts. Click the [MAN] button on the moving carts (the MAN button for the reference cart will remain green). This will allow the beam combiners to send manual offsets to the moving carts. 
 + 
 +5.4 Turn on the telescope power\\
 \\ \\
-Make sure the telescopes being used are in their stow positions. For each telescope, the elevation should be at or near 90 degrees and [SPY1] should show the end ring of the telescope framing the top of the open dome. The azimuth positions for each telescope should be: S1 82.0 * S2 82.0 E1 55.9 * E2 55.9 W1 99.3 * W2 99.3\\+Make sure the telescopes being used are in their stow positions. For each telescope, the elevation should be at or near 90 degrees and [SPY1] should show the end ring of the telescope framing the top of the open dome. The azimuth positions for each telescope should be: S1S2 82.0 E1E2 55.9 W1W2 99.3\\
 On the Power GUI, turn on the [Tel AZ] and [Tel EL] power for each of the active scopes (green means ON).\\ On the Power GUI, turn on the [Tel AZ] and [Tel EL] power for each of the active scopes (green means ON).\\
-The new for 2016 stall detection function usually has each scope disabled each evening. They will need to be enabled before checking the dome servers or slewing. Make sure that the telescopes do not move away from their stow positions when enabling the scopes. If they begin moving, then click [STOW] on the Telescope Control Tab or dome gui and make sure that they arrive at the correct stow position. Check for problems with the dome servers by watching each telescope move to the precise stow position, ie. 89.990º and moving to 90.000º. If it stays off the precise stow position, the dome sever may need restarting. Click [REOPEN] on the dome gui if the clock is not the same as the CHARA time. === 5.5 Slewing to a Target Using Cosmic Debris ===\\+The new for 2016 stall detection function usually has each scope disabled each evening. They will need to be enabled before checking the dome servers or slewing. Make sure that the telescopes do not move away from their stow positions when enabling the scopes. If they begin moving, then click [STOW] on the Telescope Control Tab or dome gui and make sure that they arrive at the correct stow position. Check for problems with the dome servers by watching each telescope move to the precise stow position, ie. 89.990º and moving to 90.000º. If it stays off the precise stow position, the dome sever may need restarting. Click [REOPEN] on the dome gui if the clock is not the same as the CHARA time. 
 + 
 +5.5 Slewing to a Target Using Cosmic Debris\\
 \\ \\
-It is typically dark enough to lock on your first star if TT reports ~ 1000 counts while not point at anything (sky counts) with the SpyCams turned off. This is roughly around 20 minutes after sunset or the time of twilight reported by Cosmic Debris. Here are instructions for slewing to a target and initializing the telescopes on a bright star at the start of the night: You may want to find a bright star near your first target to check the pointing of the telescopes. The [FIND STAR] button on the Telescope Control Tab can be useful in finding a suitable, bright star. There is also a printed list of bright stars in order of RA in the binder on the left side of the control room desk. If your first target is bright, then you may slew to it first. Enter the HD number of the star into Cosmic Debris using the Object or Calibrator Tabs. Click the [HD] button to register the entry. (Alternatively, you could enter a CHARA NUM, IRC, HR, HD, or SAO number and click the corresponding button.) If a star or new target is not recognized by Cosmic Debris, [[:chara:trouble_shooting#adding_or_finding_a_star_in_the_chara_database|follow the procedure below for DBADD]]. Check to make sure that EL/AZ reported by Cosmic Debris are correct and safe for pointing (never point below 15-20 degrees elevation). It is recommended to initialize the telescopes on a target between 40-70 degrees elevation. Hit the WHEN button for your first star to see a plot of cart positions and when it is in delay. Enter the ideal reference cart position into the REF text window on the Cosmic Debris Control Tab. Click the [REF] button to send the reference cart position to OPLE. Slew to the target by clicking [OBJECT], [CHECK STAR], [CALIBRATOR 1], or [CALIBRATOR 2] on Cosmic Debris (depending on which field you entered the target information). Note that these buttons will slew the telescopes AND send the carts to their positions. Verify that the telescopes are moving by checking the azimuth and elevation status in the telescope servers (the left set of numbers show the commanded EL/AZ of the target while the right set of numbers show the current location of the telescope). Also view "SPY1" to check that the telescopes and domes are moving. The telescopes will usually arrive at the elevation of the target first and then continue in azimuth until the star appears in the finder or ACQ window. If the scopes do not move, check that they are enabled. The telescope server will show RA and DEC coordinates if enabled and will show DISABLED if disabled. The update in the OPLE server will take about 20 seconds for all the carts to get the new metrology calculation. Make sure all carts are tracking to values between 0 and 44m. You might have to click [TRACK] for the reference cart on the OPLE Control Tab. The [OL] buttons should be depressed gray for ALL active scopes (including the reference cart). The [MAN] buttons should be depressed gray for the moving carts to allow the beam combiners to send manual offsets to the carts. (The [MAN] button for the reference cart should be green.) When the telescope slew finishes, check the SPY 1 to make sure that the domes are aligned with the telescope. In the ACQ window, hit [MOVE] under the TV tracking menu on the Main Tab of the Telescope GUI and then click the left star to bring the star to the cross-hairs. If the star is not in the ACQ window, go to the FIND window and do the same, then return to the ACQ window and repeat.\\ +It is typically dark enough to lock on your first star if TT reports ~ 1000 counts while not point at anything (sky counts) with the SpyCams turned off. This is roughly around 20 minutes after sunset or the time of twilight reported by Cosmic Debris. Here are instructions for slewing to a target and initializing the telescopes on a bright star at the start of the night: You may want to find a bright star near your first target to check the pointing of the telescopes and to do sky flats for the telescope DM's. The [FIND STAR] button on the MAIN tab of the obsgtk is useful in finding a suitable, bright star. It will report the star name, mag, and ALT and AZ in the text window at the bottom of the gui. There is also a printed list of bright stars in order of RA in the binder on the left side of the control room desk. If your first target is bright, then you may slew to it first. Enter the HD number of the star into Cosmic Debris using the Object or Calibrator Tabs. Click the [HD] button to register the entry. (Alternatively, you could enter a CHARA NUM, IRC, HR, HD, or SAO number and click the corresponding button.) If a star or new target is not recognized by Cosmic Debris, [[:chara:trouble_shooting#adding_or_finding_a_star_in_the_chara_database|follow the procedure below for DBADD]]. Check to make sure that EL/AZ reported by Cosmic Debris are correct and safe for pointing (never point below 15-20 degrees elevation). It is recommended to initialize the telescopes on a target between 40-70 degrees elevation. Hit the WHEN button for your first star to see a plot of cart positions and when it is in delay. Enter the ideal reference cart position into the REF text window on the Cosmic Debris Control Tab. Click the [REF] button to send the reference cart position to OPLE. Slew to your first star by clicking [OBJECT], [CHECK STAR], [CALIBRATOR 1], or [CALIBRATOR 2] on Cosmic Debris (depending on which field you entered the target information). Note that these buttons will slew the telescopes AND send the carts to their positions. Verify that the telescopes are moving by checking the azimuth and elevation status in the telescope servers (the left set of numbers show the commanded EL/AZ of the target while the right set of numbers show the current location of the telescope). Also view "SPY1" to check that the telescopes and domes are moving. If the domes do not rotate, click the AUTODOME ON button to enable the domes. The telescopes will usually arrive at the elevation of the target first and then continue in azimuth until the star appears in the finder or ACQ window. If the scopes do not move, check that they are enabled. The telescope server will show RA and DEC coordinates if enabled and will show DISABLED if disabled. The update in the OPLE server will take about 20 seconds for all the carts to get the new metrology calculation. Make sure all carts are tracking to values between 0 and 44m. You might have to click [TRACK] for the reference cart on the OPLE Control Tab. The [OL] buttons should be depressed gray for ALL active scopes (including the reference cart). The [MAN] buttons should be depressed gray for the moving carts to allow the beam combiners to send manual offsets to the carts. (The [MAN] button for the reference cart should be green.) When the telescope slew finishes, check the SPY 1 to make sure that the domes are aligned with the telescope. In the ACQ window, hit [MOVE] under the TV tracking menu on the Main Tab of the Telescope GUI and then click the right star to bring the star to the cross-hairs. If the star is not in the ACQ window, go to the FIND window and do the same, then return to the ACQ window and repeat. If beacon alignments and sky flats are needed, do not center the star until the alignments are done first. 
-Locking Tiptilt With the star aligned with the acquisition ticks, check to make sure there are counts on the TipTilt server or the white plots in the TT windows have condensed. On the Main Tab of the Telescope GUI, click [TIP/TILT] under the Pointing Servo menu. If this button is not pressed, then the green dots on the tiptilt windows will drift and eventually drop TT lock. The [STAR ACQUIRED] button on Cosmic Debris also locks Tiptilt for all active scopes with one push of a button. On the Tiptilt Servo Control GUI, turn tiptilt [ON] for that telescope. The [TT ON] button on Cosmic Debris also performs this function for all active scopes. * Put the TV screens back to [FIND] if you like or leave them in ACQ\\ + 
-Acquisition Laser Alignment if the star does not lock in Tiptilt on the ACQ window cross hairs * Set VISBEAMS to correct beams. Put the Neutral Density Filter on ND 3.0 using the Laser_Filters GUI. * Put the corner cube in with the [CCIN] button on the Control tab on the telescope gui. It will take about 10 seconds to move into the beam. * Using the SHUTTERS GUIopen the laser shutter and the corresponding B1-B6 shutters. You will see at least two stars and two laser spots in the ACQ window. There is a reflection, hence two images of each. The desired spots are the left ones. Use the "ORIGIN" paddle on the ADJUST Tab of the Telescope GUI to align the TV cross-hairs to coincide with the laser spot. Close the laser shutter and the B1-B6 shutters. * Move the corner cube out with the [CCOUT] button on the Main tab or Control tab on the telescope gui. It will take about 10 seconds to move out of the the beam. Hit [MOVE] under the TV tracking menu on the Main Tab of the Telescope GUI and then click the left star to bring the star to the cross-hairs. If it doesn't center well, click [MOVE] again and then the star again until the TipTilt plots show that it is getting light. Lock Tiptilt as shown above. Maintain the ACQ laser alignment during the night by adjusting the crosshairs to the star after locking Tiptilt.\\+5.6 Locking Tiptilt (when using lab tiptilt) 
 + 
 +With the star aligned with the acquisition ticks, check to make sure there are counts on the TipTilt server or the white plots in the TT windows have condensed. On the Main Tab of the Telescope GUI, click [TIP/TILT] under the Pointing Servo menu. If this button is not pressed, then the green dots on the tiptilt windows will drift and eventually drop TT lock. The [STAR ACQUIRED] button on Cosmic Debris also starts the Tiptilt servo for all active scopes with one push of a button. On the Tiptilt Servo Control GUI, turn tiptilt [ON] for each telescope or use the [TT ON] button on Cosmic Debris to perform this function for all active scopes. 
 + 
 +Acquisition Laser Alignment if the star does not lock in Tiptilt 
 + 
 +Set VISBEAMS to correct beams. Put the Neutral Density Filter on ND 3.0 using the Laser_Filters GUI. If the beacon and fiber covers are open, use the SHUTTERS GUI to open the laser shutter and the corresponding B1-B6 shutters. You can also put in the corner cube with the [CCIN] button. You will see at least two stars and two laser spots in the ACQ window. There is a reflection, hence two images of each. The desired spots are the right ones. Use the "ORIGIN" paddle on the ADJUST Tab of the Telescope GUI or obsgtk to align the TV cross-hairs to coincide with the laser spot. Close the laser shutter and the B1-B6 shutters. * Move the corner cube out with the [CCOUT] button on the Main tab or Control tab on the telescope gui if you used it. It will take about 10 seconds to move out of the the beam. Hit [MOVE] under the TV tracking menu on the Main Tab of the Telescope GUI and then click the right star to bring the star to the cross-hairs. If it doesn't center well, click [MOVE] again and then the star again until the TipTilt plots show that it is getting light. Lock Tiptilt as shown above. Maintain the ACQ laser alignment during the night by adjusting the crosshairs to the star after locking Tiptilt.\\
 \\ \\
-Finishing the slew sequence The Job Queue ends with slewing to the star. The star is acquired manually. Click [Star Acquired] on the Control Tab on Cosmic Debris to update the target information listed at the top of the Cosmic Debris window. This also turns on all the telescope TT servos, the same function as the TIPTILT button on each telescope gui. Initialize the pointing of the telescopes on your first target by going to the Control Tab of the Telescope GUI and clicking [INIT]. Make sure you are on the correct star before initing the scopes or you will have problems. This may have to be repeated if the pointing drifts during the night. This will allow more consistent and accurate pointing for this part of the sky. You can now point to your first science target, calibrator, alignment star or fringe finder and begin the alignment sequence for the beam combiner and then start searching for fringes. === 5.6 Automatic Acquisition Sequence, removed 9-'17 === * The slew sequence will slew the telescopes, start ATROLIB, and send the moving carts to the proper positions. The star acquisition sequence has been removed.\\+5.7 Finishing the slew sequence 
 + 
 +The Job Queue ends with slewing to the star. The stars are acquired manually. Click [Star Acquired] on the Control Tab on Cosmic Debris to update the target information listed at the top of the Cosmic Debris window. This also turns on all the telescope TT servos, the same function as the TIPTILT button on each telescope gui. Initialize the pointing of the telescopes on your first target by going to the MAIN tab on the obsgtk and clicking the red [INIT] button. Make sure you are on the correct star before initing the scopes or you will have problems. This may have to be repeated if the pointing drifts during the night. This will allow more consistent and accurate pointing for this part of the sky. You can now point to your first science target, calibrator, alignment star or fringe finder and begin the alignment sequence for the beam combiner and then start searching for fringes. 
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 [[:chara:operating_procedures|Back to Main Menu]]\\ [[:chara:operating_procedures|Back to Main Menu]]\\
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-**Chapter 6:** === = Procedure for Shutting Down at the End of the Night ==== === 6.1 End Night Sequence Introduction ===\\+**Chapter 6:** === = Procedure for Shutting Down at the End of the Night 
 + 
 +6.1 End Night Sequence Introduction\\
 \\ \\
-The End Night sequence on Cosmic Debris can be used to end observing and stow the telescopes, carts, and domes. It will only stow the active scopes, carts, and domes, so if there are other scopes open, make them active in the Configure tab of CD or stow them manually with the procedure below, 6.4 Manually Stowing the Telescopes === 6.2 Start the end night sequence on Cosmic Debris === * Clear the job queue on Cosmic Debris. Press the [END NIGHT] button on Cosmic Debris. This will close all the shutters, stow the active telescopes, close the telescope mirror covers, send the OPLE carts to the back switch, close the OPLE socket, and archive the accumulated data for the night. NOTE: The End Night Sequence will NOT close the dome slits so these will have to be closed manually after all of the telescope mirror covers are closed. It will also not send inactive carts back. Update the configuration with any inactive scopes to make sure those carts can be sent back manually as well. The Cosmic Debris status window will indicate when the end night sequence is complete. You can close Cosmic Debris after you have sent out the Observing Report. * If you use the End Night sequence to stow the telescopes and close mirror covers, remember to do a visual check of all telescopes using the check list in step 6.4 below before turning off the power for the telescopes and closing the telescope GUIs.\\+The End Night sequence on Cosmic Debris can be used to end observing and stow the telescopes, carts, and domes and close the mirror covers. It will only stow the active scopes, carts, and domes, so if there are other scopes open, make them active in the Configure tab of CD or stow them manually with the procedure below, 6.4 Manually Stowing the Telescopes 
 + 
 +6.2 Start the end night sequence on Cosmic Debris 
 + 
 +Clear the job queue on Cosmic Debris. Press the [END NIGHT] button on Cosmic Debris. This will close all the shutters, stow the active telescopes, close the telescope mirror covers, send the OPLE carts to the back switch, close the OPLE socket, and archive the accumulated data for the night. NOTE: The End Night Sequence will NOT close the dome slits so these will have to be closed manually after all of the telescope M1 mirror covers are closed. It will also not send inactive carts back. Update the configuration with any inactive scopes to make sure those carts can be sent back manually as well. The Cosmic Debris status window will indicate when the end night sequence is complete. You can close Cosmic Debris after you have sent out the Observing Report. * If you use the End Night sequence to stow the telescopes and close mirror covers, remember to do a visual check of all telescopes using the check list in step 6.4 below before turning off the power for the telescopes and closing the telescope GUIs.\\
 A list of observed targets and an Observing Report is now automatically generated as part of the End Night Sequence. Click [END NIGHT], then [REPORT] on Cosmic Debris to generate this automatic report email. The report will include the headings: PI name, Program, Observers, Baselines, Weather and Seeing data, and targets on which data was collected. Complete the Observers and Baselines entries, add comments to the bottom of the report and put your name at the end. Check with the observer for completeness of the target list. Some observers will send you comments of their own. Add those to the report. Cut and paste this into an email to CHARA Obs and send it. When the function works, you can also hit the SEND button at the bottom of the report to email this report to the CHARA OBS list.\\ A list of observed targets and an Observing Report is now automatically generated as part of the End Night Sequence. Click [END NIGHT], then [REPORT] on Cosmic Debris to generate this automatic report email. The report will include the headings: PI name, Program, Observers, Baselines, Weather and Seeing data, and targets on which data was collected. Complete the Observers and Baselines entries, add comments to the bottom of the report and put your name at the end. Check with the observer for completeness of the target list. Some observers will send you comments of their own. Add those to the report. Cut and paste this into an email to CHARA Obs and send it. When the function works, you can also hit the SEND button at the bottom of the report to email this report to the CHARA OBS list.\\
 Note: Classic, CLIMB, FLUOR and PAVO will automatically send the target information to Cosmic Debris after data is acquired. For MIRCx, the [DATA ACQUIRED] button can be clicked on Cosmic Debris after each data sequence is finished or it can be done by the MIRCx operator from his or her station.\\ Note: Classic, CLIMB, FLUOR and PAVO will automatically send the target information to Cosmic Debris after data is acquired. For MIRCx, the [DATA ACQUIRED] button can be clicked on Cosmic Debris after each data sequence is finished or it can be done by the MIRCx operator from his or her station.\\
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 In addition to paper observing logs, CHARA offers the option of using electronic logs. At minimum, we request that you fill out the date, UT time, target name, and any comments that would be relevant for subsequent reduction. This information will be useful for building and maintaining the CHARA archive:\\ In addition to paper observing logs, CHARA offers the option of using electronic logs. At minimum, we request that you fill out the date, UT time, target name, and any comments that would be relevant for subsequent reduction. This information will be useful for building and maintaining the CHARA archive:\\
-CHARA Electronic Logs === 6.3 Shutdown Checklist Introduction ===\\+CHARA Electronic Logs 
 + 
 +6.3 Shutdown Checklist Introduction\\
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-It is important to make sure the array gets shutdown properly at the end of the night. This includes stowing the telescopes, closing the mirror covers and domes, powering down equipment, and covering the cameras. Each day many employees are working on various systems from any number of different locations around the Array. Any CHARA equipment left on or exposed, can cause damage to other systems or be damaged itself. It is critical that the array is shut down consistently from night to night. Listed below are the procedures for shutting down the array. Please make sure that the Array is secure at the end of the night. === 6.4 Manually stowing the telescopes === * Unlock the tiptilt beams using the Tiptilt servo control GUI. Turn the telescope TVs to SPY1 so that you can watch the telescopes. On the Control Tab of the telescope GUI, click [STOW]. This will send the telescope and dome to the stow position. When the telescopes reach an elevation above 70 degrees, you can begin closing the mirror covers. M1 CLOSE M3 CLOSE M5 CLOSE M7 CLOSE Finder CLOSE Note that W2 and E1? covers need a second click to close. Visually inspect the telescopes using SPY2 to make sure that the mirror covers close properly. Check the Telescope Monitor for mirror cover status. After all of the mirror covers finish closing, close the dome slits by clicking [SLIT CLOSE] on the telescope control tab for each telescope dome that is open. Close the dome enclosures by clicking [CLOSE] on the cylinder GUI. Watch that each reads .000 or .001 when closed. Check that the telescopes moved to their stow positions in EL and AZ: EL 90.0 deg, AZ 55.9 deg for E1 and E2 EL 90.0 deg, AZ 99.3 deg for W1 and W2 EL 90.0 deg, AZ 82.0 deg for S1 and S2 Turn off the power for [TEL AZ], [TEL EL] and [TIP/TILT] for the active scopes using the Power GUI. Visually check all telescopes in the spycams to make sure all covers and slits are closed. Leave the telescope GUIs open until the End Night Sequence is finished. (Cosmic Debris will turn on the TVs and the SpyCams during the End Night Sequence.) If the humidity is high, make sure that the heaters are turned on. === 6.5 Send the OPLE carts to the back of the rails === * Click the OL and MAN buttons for the active carts on the OPLE GUI Control Tab so that the buttons turn green. Turn the carts OFF using the OPLE GUI. Click BACK on the OPLE GUI to send the carts to the back. Watch OPLE Server for Back Switch indicator to light up with an "X"When all carts are on the Back Switch, close the OPLE gui and server and turn off the metrology laser using the METLAS GUI. The [LASER POWER] button will turn from green to red. If a cart does not reach the back switch, it may have caught the ribbon or cable on the track supports. You will need to go to the rails and see why it stopped. Slack in the cable can be taken up by turning the take up spool by hand. W1 cart is the usual one that hangs up. === 6.6 Finish shutting down in the control room === * If using Classic or CLIMB, check to make sure the dither is off by looking at the dither status in the CLASSIC/CLIMB server. If necessary, this can be turned off from the dither tab on the Classic/CLIMB GUI. They are off when gray. Shut off [METSCOPE], [NIRO CPU], and [CLS-DITH], or [CLM-DITH] if used on the POWER gui. Close the OPLE, Tiptilt, CLIMB/CLASSIC GUIs Close the OPLE, Tiptilt, and CLIMB/CLASSIC servers, type CTRL+C, then Y Visually check all telescopes in the spycams to make sure all covers and slits are closed. Turn the TV to Finder, then turn the TV OFF, and close the telescope GUIsLeave GPS server and the Telescope Servers open and running === 6.7 Shutting down the Lab ===\\+It is important to make sure the array gets shutdown properly at the end of the night. This includes stowing the telescopes, closing the mirror covers and domes, powering down equipment, and covering the cameras. Each day many employees are working on various systems from any number of different locations around the Array. Any CHARA equipment left on or exposed, can cause damage to other systems or be damaged itself. It is critical that the array is shut down consistently from night to night. Listed below are the procedures for shutting down the array. Please make sure that the Array is secure at the end of the night. 
 + 
 +6.4 Manually stowing the telescopes 
 + 
 +Unlock the tiptilt beams using the Tiptilt servo control GUI. Turn the telescope TVs to SPY1 so that you can watch the telescopes and domes stow. On the Control Tab of the telescope GUI, click [STOW]. This will send the telescope and dome to the stow position. When the telescopes reach an elevation above 50 degrees, you can begin closing the mirror covers. M1 CLOSEM3 CLOSEM5 CLOSEM7 CLOSEFinder CLOSE Note that W2 and E1? finder covers need a second click to close. Visually inspect the telescopes using SPY2 to make sure that the mirror covers close properly. Check the Telescope Monitor for mirror cover status. After the M1, M3 and finder mirror covers finish closing, close the dome slits by clicking [SLIT CLOSE] on the telescope control tab for each telescope dome that is open. Close the dome enclosures by clicking [CLOSE] on the cylinder GUI. Watch that each reads .000 or .001 when closed. Check that the telescopes moved to their stow positions in EL and AZ: EL 90.0 deg, AZ 55.9 deg for E1 and E2EL 90.0 deg, AZ 99.3 deg for W1 and W2EL 90.0 deg, AZ 82.0 deg for S1 and S2Turn off the power for [TEL AZ], [TEL EL] and [TIP/TILT] for the active scopes using the Power GUI. Visually check all telescopes in the spycams to make sure all covers and slits are closed. Leave the telescope GUIs open until the End Night Sequence is finished. (Cosmic Debris will turn on the TVs and the SpyCams during the End Night Sequence.) If the humidity is high, make sure that the heaters are turned on. 
 + 
 +6.5 Send the OPLE carts to the back of the rails 
 + 
 +Click the OL and MAN buttons for the active carts on the OPLE GUI Control Tab so that the buttons turn green. Turn the carts OFF using the OPLE GUI. Click BACK on the OPLE GUI to send the carts to the back. Watch OPLE Server for Back Switch indicator to light up with an "X". When all carts are on the Back Switch, close the OPLE gui and server and turn off the metrology laser using the METLAS GUI. The [LASER POWER] button will turn from green to red. If a cart does not reach the back switch, it may have caught the ribbon or cable on the track supports. You will need to go to the rails and see why it stopped. Slack in the cable can be taken up by turning the take up spool by hand. W1 cart is the usual one that hangs up. 
 + 
 +6.6 Finish shutting down in the control room 
 + 
 +If using Classic or CLIMB, check to make sure the dither is off by looking at the dither status in the CLASSIC/CLIMB server. If necessary, this can be turned off from the dither tab on the Classic/CLIMB GUI. They are off when gray. Shut off [METSCOPE], [NIRO CPU], and [CLS-DITH], or [CLM-DITH] if used on the POWER gui. Close the OPLE, Tiptilt, CLIMB/CLASSIC GUIs Close the OPLE, Tiptilt, and CLIMB/CLASSIC servers, type CTRL+C, then YVisually check all telescopes in the spycams to make sure all covers and slits are closed. Turn the TV OFF. Leave GPS server and the Telescope Servers open and running 
 + 
 +6.7 Shutting down the Lab\\
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-Close vacuum lines and turn off pump * Go to the lab and close the vacuum valves for all telescope lines (valve handle turned perpendicular to the tube). Go outside to the pump shack and close the vacuum valve. Then shut off the vacuum pump. Note any unusual noises or excessive oil temps (above 54 C) reported by the thermometer. Let Larry know of any concerns.\\ +Go to the lab and close the vacuum valves for all telescope lines (valve handle turned perpendicular to the tube). Go outside to the pump shack and close the vacuum valve. Then shut off the vacuum pump. Note any unusual noises or excessive oil temps (above 54 C) reported by the thermometer. Let Larry know of any concerns. Lock the padlock.\\ 
-In the computer area of the lab: Turn off the Burleigh amplifiers, the amplifiers for cart movement, and the cable pullers. Turn off the power for the surge protector (black box, bottom left of VME rack). Turn off the VME, top of the left rack\\ +In the computer area of the lab: Turn off the Burleigh amplifiers, the amplifiers for cart movement, and the cable pullers. Turn off the power for the surge protector (black box, bottom left of VME rack). Turn off the VME, top of the left rack\\ 
-Go inside the lab with booties: * Put the tiptilt cover back on the tiptilt camera Turn off the silver box, then black box for NIRO and replace the NIRO camera cover if used. Turn off the key for the green alignment laser and turn the power switch off. Turn off Pico 3 controller above the tiptilt camera. Turn off the blue amplifiers for the metrology laser (button is labeled "line") * Turn off the key for the metrology laser and place it on top of the laser box. * Shut off controllers to the Periscopes if used. * Shut off lights when exiting the lab building. Return your booties to the basket if good or to the trash if they have holes in them. Make sure all doors are closed as you leave. === 6.8 Odds and ends. ===\\+Go inside the lab with booties: With the dim lights on, put the tiptilt cover back on the tiptilt cameraTurn off the silver box, then black box for NIRO and replace the NIRO camera cover if used. Turn off the key for the green alignment laser and turn the power switch off. Turn off Pico 3 controller above the tiptilt camera. Turn off the blue amplifiers for the metrology laser (button is labeled "line") * Turn off the key for the metrology laser and place it on top of the laser box. Shut off lights when exiting the lab building. Return your booties to the basket if good or to the trash if they have holes in them. Make sure all doors are closed as you leave. 
 + 
 +6.8 Odds and ends.\\
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-Back in the Control Room: If you run into any problems during the shutdown procedures, send an email to charamnt or directly to Larry and Steve so that they can work to resolve any problems that need to be resolved promptly. Please feel free to record any details in the Observers Notebook or email Tech Report to specified groups or individual employees Lock front and side doors of Operations Center if you are the last one in the building * Lock OPLE building doors; they tend to stick open, please shut tightly\\+Back in the Control Room: If you run into any problems during the shutdown procedures, send an email to charamnt or directly to Larry and Steve so that they can work to resolve any problems that need to be resolved promptly. Please feel free to record any details in the Observers Notebook or email Tech Report to specified groups or individual employeesLock front and side doors of Operations Center if you are the last one in the building. Close OPLE building doors; they tend to stick open, please pull firmly.\\
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 [[:chara:operating_procedures|Back to Main Menu]] [[:chara:operating_procedures|Back to Main Menu]]
  
  
chara/operating_procedures.txt · Last modified: 2023/09/01 02:50 by gail_stargazer